You can set the Portfolio in the backend. Go to your Baque > Theme Options > Portfolio > Here Sections:

[1] Portfolio page content: select the page, content this page will be add in after content archive portfolio page

[2] Portfolio banner: background banner portfolio page.

[3] Portfolio item: The items show each page in portfolio.

[4] Portfolio filter by: the filter by category or tag and select multi item name category or tag below ( empty for show all items ).

[5] Portfolio single style: style single portfolio page.

[6] Color Portfolio Single Title: The color of portfolio single title